Tesla Powerwall 3 vs Anker SOLIX X1
A straight, side by side read on specs and warranties, with the honest caveats. Every figure is from the manufacturer datasheet; sources are at the bottom.
| Spec | Tesla Powerwall 3 | Anker SOLIX X1 |
|---|---|---|
| Chemistry | Not published | LFP |
| Usable capacity | 13.5 kWh | 10, 15, or 20 kWh nominal per module (usable not published) |
| Continuous power | 11.5 kW | 6 kW |
| Peak power | Not published | 12 kW |
| Round-trip efficiency | 89% | 90.2% |
| Warranty | 10 years | 10 years limited |
| Backup scope | Whole-home capable | Whole-home capable |
| Inverter | Integrated | Integrated |
What actually differs
- More continuous power: the Tesla Powerwall 3 sustains 11.5 kW vs 6 kW, which matters for running big loads like an AC at once.
- Efficiency is not apples to apples here: the Tesla Powerwall 3 quotes 89% (solar round trip (solar to battery to home); not a pure AC to AC figure) and the Anker SOLIX X1 quotes 90.2% (AC to battery to AC at 77F), so do not read the raw numbers as a direct ranking.
Which one pays off is a numbers question.
Neither spec sheet tells you the payback in your home. That comes from your rate plan and incentives.
Run the Worth It calculator →Powerwall 3 vs SOLIX X1 FAQ
Is the Tesla Powerwall 3 or the Anker SOLIX X1 better?
Neither is universally better. The Tesla Powerwall 3 delivers more continuous power (11.5 kW vs 6 kW). The right pick depends on your home's loads, backup needs, and budget, not the brand on the box.
Which has more continuous power, the Tesla Powerwall 3 or the Anker SOLIX X1?
The Tesla Powerwall 3 sustains 11.5 kW continuous vs 6 kW, which matters for running big loads like an air conditioner at once.
Is the Tesla Powerwall 3 or the Anker SOLIX X1 cheaper?
Neither spec sheet tells you the installed cost or the payback in your home. That depends on your electricity rate plan and local incentives, so run the numbers for your address rather than comparing sticker prices.
Sources
Source: Tesla Powerwall 3 datasheet, 2026. Specs verified 2026-07-01. Figures are per single unit at beginning of life; confirm the current datasheet with your installer.
Source: Anker SOLIX X1 AC-coupled datasheet (US), rev 2025-03. Specs verified 2026-07-01. Figures are per single unit at beginning of life; confirm the current datasheet with your installer.